| [ Total Views: 906 | Total Replies: 10 | Thread Id: 34013 ] |
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 Boozer
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 posted on January 11th, 2005 at 05:31 PM |
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1641 Carb size?
Ok. now that i've confirmed that my old engine was a 1641 i need to find out a few things.
1. compression ratio.
2. what carbs would be suitable for it? preferably single not twin carbs and where to find/get them would be good.
3. and any other usefull info you think i might need. :thumb
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11CAB
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| posted on January 11th, 2005 at 05:37 PM |
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A pict 34 would be fine for it
I had a 1776 with a 40 DCNF on it then changed it back to a pict34 and it went pretty much as well as the weber up to about 4500rpm and had a choke as
well....
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64vwmark
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 posted on January 11th, 2005 at 09:21 PM |
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My 1641 has a 40 DCNF Weber as well. It works ok and is easy to tune. I'm told that twins are much better though as the intake manifold is too long
with the single carb. I'll get to try out some twins soon, a family friend is giving me some!!
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Oasis
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| posted on January 12th, 2005 at 12:10 AM |
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twins are no good for off road as the linkages are a bit too fragile so I'm told, but of course good for going FAST:bounce
"Tell him 'We've already got one'"
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GL1972
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| posted on January 12th, 2005 at 10:51 AM |
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How about a progressive Weber DCD/Holley 5200 32/34 or 32/36 (not sure if I got the designations correct). Once tuned they give good performance and
are economical.
Brendan
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Craig Torrens
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| posted on January 12th, 2005 at 03:30 PM |
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Stay with the standard carb.......................the motor probably has a standard cam so why pour more fuel into it.
If you are running Baja extractors then rejet the main to a 135 or even a 140 jet.
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Quoll
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| posted on January 13th, 2005 at 05:46 PM |
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2100 bugspray with a non-plenum manifold
:thumb |
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MUD BASHING ANYONE ??
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| posted on January 22nd, 2005 at 10:34 AM |
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If your just doing a top ender make sure that the bottem end is still good by getting two flat bladed screew drivers and putting one on ether side of
the flywheel and moving it from side to side and up and down and if there is move ment is not so great if theres alot put it in the bin and find a
type 4. and the carby stick with the stocker yor motor will not have enough anything to need a webber it will only go worse and use more fuel
You only need two tools
Wd40 if it don't move and it should
Duct tape if it move's and it shouldn't
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Doug Sweetman
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| posted on January 22nd, 2005 at 12:34 PM |
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If you put a properly jetted and tuned 32/36 DGAV progressive weber on any 1600 and larger engine with a better exhaust (its a baja, it must have
extractors of one form or another) you will end up with great driveability and a nice performance improvement. Get the mechanical secondary version -
you can drive around on one barrel of the carb to save fuel, and give it a bootful when you need it.
Or you could stick with the stock 34 pict, it will work fine, I just think (from experience) that the progressive 2 bbl webers are great value for
money and can waken up a 1600 a bit more.
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 barls
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| posted on January 22nd, 2005 at 12:35 PM |
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they go alright with a prog webber i had one on my big bore still have the carb too if your interested. the only problem is the manifold was used with
a different carb. but if you want it let me know
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Doug Sweetman
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| posted on January 22nd, 2005 at 12:35 PM |
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Oh, and regards the compression ratio, dont go above about 8.5 : 1 without starting to look at external coolers etc.
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